[Mac] Redesign of the avatar menu button

chrome/browser/profiles/profiles_state.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/profiles/profiles_state.h"
 
 #include "base/files/file_path.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 102 matching lines @@
   // the primary account too, so we need to remove it from the list.
   std::vector<std::string>::iterator primary_index =
       std::find_if(accounts.begin(), accounts.end(),
                    std::bind1st(std::equal_to<std::string>(), primary_account));
   DCHECK(primary_index != accounts.end());
   accounts.erase(primary_index);
 
   return accounts;
 }
 
+bool IsRegularOrGuestSession(Browser* browser) {
+  Profile* profile = browser->profile();
+  return profile->IsGuestSession() || !profile->IsOffTheRecord();
+}
+
 }  // namespace profiles